Illustration credits
The following images are reproduced by kind permission from their copyright holders, to whom any questions about their use should be directed:
- F1_8: reproduced with kind permission from the NGG Picture Library
- F2_39b: reproduced with kind permission from the Archivio dell’Opera di Santa Croce (photographic reproduction by Culturanuova, Arezzo based on an original photo by Antonio Quattrone).
- F4_18a: reproduced with kind permission from Fototeca Gilardi
- V3_1: reproduced with kind permission from Pat Binder and Dr Gerhard Haupt of Worlds of Art
- V5_14: reproduced with kind permission from Mondadori.
- V6_57a: reproduced with kind permission from the National Gallery Picture Library.
- V7_8: reproduced by kind permission from The Granger Collection.
- V7_19a: reproduced by kind permission from Bridgeman Images (© A. Dagli Ort, © NPL—DeA Picture Library/Bridgeman Images)
